Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
DIA vs IWO: how they differ
DIA and IWO hold 0% of their weight in the same names, and IWO returned more over the year.
SPDR Dow Jones Industrial Average ETF Trust and iShares Russell 2000 Growth ETF.
What they hold in common
By the books each fund has filed, DIA and IWO hold 0% of their money in the same securities at the same weight.
| Only in DIA | Only in IWO |
|---|---|
| GOLDMAN SACHS GROUP INC 11.61% | MOOG INC CLASS A 0.69% |
| CATERPILLAR INC 9.17% | GLAUKOS 0.65% |
| MICROSOFT CORP 5.61% | JFROG 0.64% |
| UNITEDHEALTH GROUP INC 4.42% | BRIGHTSPRING HEALTH SERVICES INC 0.62% |
| AMGEN INC 4.36% | FIRSTCASH HOLDINGS INC 0.62% |
| TRAVELERS COS INC/THE 4.19% | BRINKER INTERNATIONAL INC 0.61% |
| VISA INC CLASS A SHARES 4.18% | INTERDIGITAL INC 0.60% |
| JPMORGAN CHASE + CO 4.03% | KRYSTAL BIOTECH 0.59% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.
| DIA SPDR Dow Jones Industrial Average ETF Trust | IWO iShares Russell 2000 Growth ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | State Street | iShares |
| What it is | Dow Jones Industrial Average | Russell 2000 Growth |
| Total return, 1 year | +15.6% | +17.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −1.9 pts | −0.5 pts |
| Expense ratio | not published | 0.24% |
| Already in the S&P 500 | 97.1% | 0.0% |
| Holdings | 31 | 970 |
DIA in plain words
DIA is an index equity fund tracking the Dow Jones Industrial Average. Over the year to Sep 11, 2026 it returned +15.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. By its holdings filed for Sep 10, 2026, 97% of the fund by weight is stocks the S&P 500 also holds, across 31 positions, with the top ten at 55.1%. It sat 3.1% below its high of Aug 5, 2026 on Sep 11, 2026.
IWO in plain words
IWO is an index equity fund tracking the Russell 2000 Growth. Over the year to Sep 11, 2026 it returned +17.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.24% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 970 positions, with the top ten at 6.2%. It sat 7.1% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, DIA or IWO?
- In the year to Sep 13, 2026, with distributions reinvested, DIA returned +15.6% and IWO returned +17.0%, so IWO returned more. One year is one year; the longer windows are in the table.
- How much do DIA and IWO overlap with the S&P 500?
- By their latest filed holdings, 97% of DIA and 0% of IWO by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, DIA against IWO, data as of Sep 13, 2026. https://etfiq.com/compare/any/dia-vs-iwo Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources